| Which version of the procedure was in force when this batch was manufactured? |
Each version has its effective dates and its approval history. |
| Do staff know the updated procedure? |
Distribution records who it was sent to and who confirmed reading it. |
| Who approved the change and why? |
The request stores the reason, and the approval carries an electronic signature. |
| How do you control external documents? |
Standards, certificates and supplier manuals are recorded as external documents with periodic review. |
| How do you prevent an obsolete version from being used? |
When a new version is approved, the previous one becomes obsolete and is taken out of use. |